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Re: Replace the nth occurence

by AnomalousMonk (Canon)
on Nov 21, 2012 at 06:02 UTC ( #1004848=note: print w/replies, xml ) Need Help??


in reply to Replace the nth occurence

Another approach (\K available with 5.10+):

>perl -wMstrict -le "my $nth = 4; my $str = 'a,bb,ccc,dddd,eeeee,ffffff'; ;; --$nth; $str =~ s{ (?: , [^,]*){$nth} \K , }{|}xms; print qq{'$str'}; " 'a,bb,ccc,dddd|eeeee,ffffff'

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Re^2: Replace the nth occurence
by ColonelPanic (Friar) on Nov 21, 2012 at 08:38 UTC

    ++. This is the most efficient approach.



    When's the last time you used duct tape on a duct? --Larry Wall

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[james28909]: yep, i am scraping a websites date/time stamp from an article. none of that is relevant though because the strings i get are as expected. the returned data from the website is the list of @weekdays
[james28909]: i need to convert those @weekdays to an numerical date based off of scalar localtime
[james28909]: i have thught about this and though about it lol
[james28909]: also remember, that if 'Today' is may 1, then Yesterday is not may 31 lol
[james28909]: theoretically speaking ofcourse
[james28909]: so if you subtracting as you loop, be aware that you will eventually be subtracting into a past month, or year <.<
[james28909]: dontcha love it!

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